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310s STAINLESS STEEL FLAT BAR
Stainless steel flat steel can be composed of various stress-bearing components according to different needs of the structure, and can also be used as a connection between components. It is widely used in various building structures and engineering structures, such as building beams, bridges, power transmission towers, lifting and transporting machinery, ships, industrial furnaces, reaction towers, container racks and warehouse shelves.
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product description
Basic informationedit
Stainless steel flat steel can be composed of various stress-bearing components according to different needs of the structure, and can also be used as a connection between components. It is widely used in various building structures and engineering structures, such as building beams, bridges, power transmission towers, lifting and transporting machinery, ships, industrial furnaces, reaction towers, container racks and warehouse shelves.
Stainless steel flat steel
Stainless steel flat steel
Stainless steel flat steel is used in construction projects as bridges, house frames, fences, power transmission ships, vehicles, etc. The raw material billets for the production of stainless steel flat steels are low-carbon square steel billets, and the finished stainless steel flat steels are delivered in a hot-rolled, cold-rolled or hot-rolled state. During the transaction, the side width and side thickness dimensions of the stainless steel flat steel should be fully filled in the contract and other documents, as well as the main other process items, such as annealing, solid solution, etc.
Types and specifications
It is mainly divided into two types: equal side and unequal side. Among them, equal side can be divided into square steel. The specifications are expressed by the size of side length and side thickness. The domestic specifications are 3mm*20m—150mm.
Import and export orders are generally based on the specifications required in use, and the steel grade is the corresponding carbon steel grade. That is, apart from the specification number, there is no specific composition and performance series.
The delivery length of stainless steel flat steel is divided into fixed length and double length. The domestic fixed length selection range is 3-9m and 4-12m according to the different specification numbers. The length selection range of Japan is 6-15m.
import and export
my country's imports and exports each have certain quantities, mainly from Japan and Western Europe. Exports to regions are mainly Hong Kong, Macau, Southeast Asia, Latin America and Arab countries. Export production companies are mainly steel mills (rolling mills) in Jiangsu, Liaoning, Hebei, Beijing, Shanghai, Tianjin and other provinces and cities.
Appearance Quality
The surface quality of stainless steel flat steel is stipulated in the standard, and it is generally required that there should be no harmful defects in use, such as delamination, scarring, and cracks.
The allowable range of geometric shape deviation is also specified in the standard, which generally includes items such as curvature, side width, side thickness, apex angle, theoretical weight, etc., and requires significant torsion.
Inspection editor
chemical composition
(1) Composition index: The chemical composition of stainless steel flat steel belongs to the general structural rolled steel series, and the main inspection indexes are C, Mn, P, and S. According to different grades, the content varies, the approximate range is C<0.08%, Mn: 2.0, P<0.035%, S<0.03%.
(2) Inspection methods: When testing the above chemical components, the commonly used standard inspection methods include GB223, JISG1211-1215, BS1837, BS Manual 19, GOST 22536, etc.
Specifications
GB/T2101—89 (General provisions for acceptance, packaging, marking and quality certificate of section steel); GB9787—88/GB9788—88 (hot-rolled size, shape, weight and allowable deviation); JISG3192—94 (shape of hot-rolled section steel) , Size, weight and tolerance); DIN17100-80 (quality standard for ordinary structural steel); ГОСТ535-88 (technical conditions for ordinary carbon steel).
According to the above-mentioned standards, the delivery in bundles, the number of bundles, and the length of the same bundle shall comply with the regulations. Generally, it is delivered in bare packaging, transportation and storage must be protected from moisture.
Mechanical behavior
(1) Inspection method:
① Tensile test method. Commonly used standard inspection methods are GB/T228-87, JISZ2201, JISZ2241, ASTMA370, ГОСТ1497, BS18, DIN50145, etc.;
② Bend test method. Commonly used standard inspection methods are GB/T232-88, JISZ2204, JISZ2248, ASTME290, ГОСТ14019, DIN50111, etc.
(2) Performance index: The main test items for evaluating performance are tensile test and bending test. The indicators include yield point, tensile strength, elongation and bending qualification.
Weight calculation
Weight per meter (kg) = 0.00793 × side width (mm) × side thickness (mm)
Factory appearance
Packing & Delivery
Our Company
Shandong Chengming Steel Co.,Ltd
Our company supplies cold/hot-rolled stainless steel sheets,stainless steel bars ,stainless steel coil stainless steel pipes,lead plate,bearing steel,spring steel,steel plate pile,tank plate,alloy steel plate,weather resistant steel plate and wear resistant plate to many steel factories from at home and abroad, including Shanxi Taigang Iron& Steel CO,.LTD (TISCO) Zhangjiagang Pohang (ZPSS), Shanghai Krupp, Ningbo Baoxin and steel factories in Taiwan area, Mainland Chinese and foreign countries and regions.
Our annual capacity is 25, 000 tons. The Annual Domestic Sale is 20 million, Annual Exported Sale about 12 million dollars.Our products supplied to more than 20 countries, such as Indonesia, Spain, Japan, Korea, Vietnam, Italy, Israel,Australia, Malaysia, Brazil, Pakistan, U. A. E, Peru, India etc. Good quality has been getting more and more prise from buyers at home and abroad.Our long-term business lines are 304 .202, 201 .430.409L, 304L, 316L, 309S and 310S, Finish: 2B ,BA ,NO.1 NO.4 ,HL, NO.8 and so on . For the sheets and coils,the thickness ranging from 0.3mm to 100mm.For the bars,the diameter ranging from 1mm to 300mm.For the pipes ,we have seamless pipe and weld pipe. Meanwhile, our company is also engaged in the long-term supply of homemade & imported medium and thick plates,galvanized or carbon
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Steel Sheet pile Description The steel sheet pile is a kind of steel structure with a linkage device on the edge, and this linkage device can be freely combined to form a continuous and compact steel structure with a retaining wall or a water retaining wall. The steel sheet pile is a type of steel with a lock. Its cross-sections are straight, trough and Z-shaped. There are various sizes and interlocking forms. The common ones are Larsonian, Lakwanaian and so on. Its advantages are: high strength, easy to penetrate hard soil; can be constructed in deep water, if necessary, add diagonal support to become a cage. It has good waterproof performance; it can be formed into cofferdams of various shapes as required and can be reused many times. Therefore, it has a wide range of uses. classification Steel sheet pile products are classified into cold-formed thin-walled steel sheet piles and hot-rolled steel sheet piles according to the production process. (1) There are two types of cold-formed steel sheet piles: non-bite type cold-formed steel sheet piles (also called channel plates) and bite type cold-formed steel sheet piles (divided into L-shaped, S-shaped, U-shaped, and Z-shaped) . Production process: Use thinner plates (commonly used thickness 8mm ~ 14mm) to be continuously rolled and formed in the cold bending unit. Advantages: less investment in the production line, lower production cost, flexible control of product size. Disadvantages: the thickness of each part of the pile body is the same, the section size cannot be optimized, which leads to an increase in steel consumption, the shape of the lock part is difficult to control, the joint is not tightly buckled, and the water cannot be stopped, and the pile body is easy to tear during use. (2) Hot-rolled steel sheet piles Hot-rolled steel sheet piles in the world mainly include U-shaped, Z-shaped, AS-shaped, H-shaped and dozens of specifications. The production, processing and installation processes of Z-type and AS-type steel sheet piles are relatively complicated, and are mainly used in Europe and America; U-type steel sheet piles are mainly used in China. Production process: It is formed by high temperature rolling by a section steel rolling mill. Advantages: standard size, superior performance, reasonable cross-section, high quality, and tight water barrier for the lock bite. Disadvantages: technical difficulty is relatively high, production cost is relatively high, specification series are not flexible. In engineering construction, the application range of cold-formed steel sheet piles is relatively narrow, and most of them are used as supplementary materials for applications. Hot-rolled steel sheet piles have always been the leading product for engineering applications. Based on the many advantages of steel sheet piles in construction operations, the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the National Standardization Management Committee issued the national standard for "Hot Rolled U-shaped Steel Sheet Pile" on May 14, 2007, and on December 1, 2007 Formally implemented. At the end of the 20th century, Maanshan Iron & Steel Co., Ltd. produced more than 5,000 tons of U-shaped steel sheet piles with a width of 400mm with the introduction of the universal rolling mill production line from abroad. The U-shaped steel sheet piles were successfully used in the cofferdam of Nenjiang Bridge and the 300,000 tons of Jingjiang New Century Shipyard. Ton shipyard and Bangladesh flood control projects. However, due to the low production efficiency, poor economic efficiency, low domestic demand and insufficient technical experience during the trial production period, continuous production was not possible. According to statistics, the annual consumption of steel sheet piles in my country remains at about 30,000 tons, accounting for only 1% of the world’s total, and it is limited to permanent projects such as the construction of some ports, wharves, and shipyards, as well as the construction of bridges, cofferdams, and foundation pit support Temporary works. The cold-formed steel sheet pile is continuously rolled and formed by the cold-formed unit, and the side lock can be continuously overlapped to form a steel structure of the sheet pile wall. The cold-formed steel sheet pile is made of thinner plates (commonly used thickness is 8mm-14mm) and processed by cold-formed forming units. The production cost is lower and the price is cheap, and the fixed-length control is more flexible. However, due to the simple processing method, the thickness of each part of the pile body is the same, the cross-sectional size cannot be optimized, which leads to an increase in steel consumption; the shape of the lock part is difficult to control, the joint is not tightly buckled, and the water cannot be stopped; limited by the capacity of cold bending processing equipment, It can produce low-strength ste
The steel sheet pile is a kind of steel structure with a linkage device on the edge, and this linkage device can be freely combined to form a continuous and compact steel structure with a retaining wall or a water retaining wall.
Stainless steel round steel belongs to the category of long products and bars. The so-called stainless steel round steel refers to a long product with a uniform circular cross section
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